ZVOXAudio AV855 Review: Dialogue-Clarifying Soundbar for Home Theater
The ZVOXAudio AV855 soundbar delivers exceptional dialogue clarity through patented hearing technology and 20 levels of voice boost, making it a strong choice for viewers prioritizing clear speech.
By Elvis Dicki
Updated October 20, 2026
For many home theater enthusiasts, the ultimate goal is immersive audio. However, a persistent challenge for countless viewers is struggling to hear clear dialogue over music, sound effects, and background noise. The ZVOXAudio AV855, specifically branded as the ZVOX AccuVoice AV855 Dialogue Clarifying Soundbar, is engineered to solve this exact problem. This low-profile soundbar integrates patented hearing technology designed to isolate and enhance spoken words, making it an ideal solution for anyone who finds themselves constantly adjusting the volume or rewinding scenes to catch missed conversation. In essence, it’s a specialized audio device that prioritizes intelligibility, offering a significant upgrade over standard TV speakers for viewers who value clear dialogue above all else.
Targeted at users who may struggle with TV audio clarity—whether due to room acoustics, hearing challenges, or poorly mixed content—the AV855 positions itself as more than just a soundbar; it’s an assistive listening device for the living room. It combines this core mission with features like dual built-in subwoofers and virtual surround sound to create a balanced, full-range audio experience. The bottom line: if your primary frustration with TV audio is muddy or inaudible dialogue, the ZVOXAudio AV855 is purpose-built to address that issue directly with customizable, technology-driven clarity.
ZVOX AccuVoice AV855 Soundbar
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
ZVOXAudio AV855 at a Glance
| Specification | Detail |
|---|---|
| Model | ZVOX AccuVoice AV855 |
| Key Feature | Patented Dialogue Clarification with 20 AccuVoice Levels |
| Speaker Configuration | Soundbar with Dual Built-in Subwoofers |
| Dimensions (W x H x D) | 33.7″ x 1.85″ x 5″ |
| Total System Power | 53 Watts |
| Audio Technologies | PhaseCue Virtual Surround, Output Leveling |
| Connectivity | HDMI-Compatible (ARC), Optical, Analog (3.5mm/RCA), USB |
| Included Cables | HDMI-Compatible, Optical, Mini to RCA, Mini to Mini Analog |
| Control Method | Remote Control |
| Primary Use Case | Improving TV dialogue clarity, especially for the hearing impaired |
Design and Build
The ZVOXAudio AV855 is defined by its low-profile, unobtrusive design. Measuring 33.7 inches wide, 1.85 inches high, and 5 inches deep, it is engineered to fit seamlessly in front of or beneath most televisions 50 inches and larger. This slim form factor is a key selling point, allowing for easy placement without obstructing the TV screen or IR sensors. The enclosure is constructed from aluminum, contributing to a robust feel while potentially aiding in heat dissipation for the internal amplifier. Weighing 5 pounds, it has a substantial presence without being cumbersome.
The front of the unit features a large, easy-to-read display, which is crucial for navigating its various settings and AccuVoice levels from a distance. The design is purely functional and minimalist, focusing on blending into a home theater setup rather than standing out. It is a tabletop-mount product, meaning it is designed to sit on a surface. The included remote control provides full access to all functions, from volume and input selection to the critical AccuVoice and bass adjustments. The overall build suggests a product designed for practical, daily use with an emphasis on user-friendly operation and discreet aesthetics.
Performance and Features
Core Audio Performance and Dialogue Clarity
The heart of the ZVOXAudio AV855’s performance is its patented AccuVoice technology. This system is designed to separate and enhance voices while minimizing background noise, directly targeting the common complaint of inaudible TV dialogue. Users can fine-tune this effect across twenty distinct AccuVoice settings, allowing for a highly personalized level of vocal clarity. This is not a simple treble boost; it’s a processed audio profile aimed at speech intelligibility. For music or general content, the soundbar employs a 53-watt amplifier driving its speaker array, which includes dual built-in subwoofers. This configuration aims to deliver a wide frequency range and notable bass response from its remarkably slim cabinet, eliminating the need for a separate, bulky external subwoofer.
Complementing the core sound is PhaseCue virtual surround technology. This processing creates a room-filling, three-dimensional audio effect from the single soundbar cabinet, attempting to simulate a more immersive home theater experience without additional rear speakers. Another significant feature for TV viewing is Output Leveling. This function automatically reduces sudden volume spikes, such as those from loud commercials, aiming to maintain a consistent and comfortable listening level. These technologies combine to position the AV855 as a soundbar that enhances clarity without sacrificing a full, engaging audio experience for movies and shows.
Connectivity and Ports
The ZVOXAudio AV855 offers a variety of wired connection options to ensure compatibility with most modern and legacy televisions. The primary digital connection is an HDMI-compatible port that supports Audio Return Channel (ARC), allowing for a single-cable connection to the TV for both audio playback and control via the TV remote. An optical (Toslink) digital input is also provided for TVs without ARC-enabled HDMI ports. For analog sources, the soundbar includes both a 3.5mm auxiliary input and support for RCA connections via an included adapter cable.
A notable inclusion is a USB port on the rear panel. This allows users to plug in a USB flash drive loaded with audio files (like MP3s) for direct playback, expanding the soundbar’s functionality beyond TV audio. The manufacturer includes a comprehensive set of cables: HDMI-compatible, optical, mini to RCA, and mini to mini analog. This “complete setup” approach is designed to simplify installation. It is important to note that wireless connectivity options like Bluetooth or Wi-Fi are not listed as features for this model; all connections are wired.
Key Features and Controls
Beyond its audio processing, the AV855’s feature set is geared towards ease of use and customization. The twenty levels of AccuVoice boost provide granular control over dialogue enhancement, which is the product’s flagship capability. Bass level can also be adjusted independently, allowing users to tailor the low-end response to their room and preference. The large front-panel display clearly shows the selected input, volume level, and active sound modes (like AccuVoice setting), which is a significant usability benefit. All functions are accessible via the provided remote control, which is essential given the soundbar’s low profile might make front-panel buttons difficult to see or access. The feature set is focused and practical, aligning with the product’s goal of solving specific audio intelligibility problems in a straightforward manner.
Setup, Support and Ownership
Setup for the ZVOXAudio AV855 is designed to be straightforward. The inclusion of multiple cable types means most users will have the necessary cord on hand to connect to their TV immediately. The recommended process is to simply place the soundbar in front of the TV and connect one cable—either the HDMI-compatible cable to an ARC port or the optical cable to the TV’s digital audio output. The low-profile design minimizes placement challenges. The manufacturer provides a one-year limited warranty covering parts and labor, which is a standard offering for electronics in this category. Specific details regarding firmware updates, extended support plans, or accessory options (like wall mounts) are not provided in the available data. Ownership appears centered on a plug-and-play experience with the provided remote and cables, requiring minimal ongoing management.
What Owners Say
Owner feedback for the ZVOXAudio AV855 indicates a positive reception, with the product earning a high rating. The consensus among reviewers highlights the soundbar’s exceptional success in its primary mission: making TV dialogue clear and understandable. Users report a dramatic improvement in speech intelligibility, often noting they no longer need to use subtitles or constantly adjust the volume. The AccuVoice technology receives particular praise for its effectiveness. The convenience of the built-in subwoofers and the reduction of loud commercial volumes via Output Leveling are also frequently mentioned as appreciated benefits. The overall sentiment suggests that for buyers seeking a solution to muddy TV dialogue, the AV855 delivers on its promise effectively.
Pros and Cons
Pros
- Superior dialogue enhancement with 20 customizable AccuVoice levels.
- Dual built-in subwoofers provide strong bass without a separate unit.
- Output Leveling feature minimizes jarring volume spikes from commercials.
- Includes multiple connection cables (HDMI, optical, analog) for easy setup.
- PhaseCue technology creates an immersive virtual surround sound experience.
- Large, easy-to-read front display for clear status information.
Cons
- Lacks wireless connectivity options like Bluetooth or Wi-Fi streaming.
- Compact size and power may limit sound projection in very large rooms.
- Relies entirely on wired connections for TV and audio source integration.
- Designed primarily for dialogue clarity, which may prioritize speech over pure audiophile music playback.
- No information is provided on wall-mounting hardware or compatibility.
Who Should Buy It (and Who Should Skip It)
The ZVOXAudio AV855 is an ideal purchase for viewers who prioritize clear, understandable dialogue above all else in their home theater audio. This includes individuals who find themselves constantly raising the volume to hear actors speak only to be blasted by action scenes or music, those with mild hearing challenges who struggle with speech intelligibility, and anyone frustrated by poorly mixed streaming or broadcast audio. Its low-profile design also makes it perfect for setups where space in front of the TV is limited. It’s a strong fit for users who want a simple, cable-included setup with no extra subwoofer to place and appreciate features like commercial volume leveling.
This soundbar may not be the best choice for users whose primary goal is wireless music streaming from phones or tablets, as it lacks Bluetooth. Audiophiles seeking the highest-fidelity, neutral sound for music listening might find its voice-optimized processing too tailored for TV use. Those with very large, open-concept living spaces might also want to consider if its compact form factor and amplifier power are sufficient to fill the room. For more options on soundbars that prioritize voice clarity, explore our guide to the best TV soundbars for voice clarity.
Final Verdict
The ZVOXAudio AV855 succeeds brilliantly in its specialized niche. It is not a generic soundbar trying to be all things to all people; it is a purpose-built tool designed to solve the pervasive problem of unclear TV dialogue. The patented AccuVoice technology, with its twenty levels of adjustment, provides a tangible and customizable solution that many users report as transformative for their viewing experience. When combined with the convenience of dual built-in subwoofers, effective virtual surround sound, and commercial volume leveling, it offers a compelling and complete audio upgrade for the core TV-watching use case.
While the lack of wireless connectivity is a notable omission for a modern audio device, it is a conscious trade-off that keeps the focus and cost on its primary mission. For anyone who has ever strained to hear a conversation on their TV, the AV855 presents a targeted and effective remedy. It proves that sometimes, the best technology is the kind that solves one specific frustration exceptionally well. For broader home audio solutions, you can read about other setups in our review of surround sound soundbars.
FAQs
Does the ZVOX AV855 work with any TV?
Yes, the ZVOXAudio AV855 is designed to be compatible with virtually any television. It includes multiple connection cables: an HDMI-compatible cable for TVs with ARC (Audio Return Channel), an optical digital cable, and analog cables (3.5mm and RCA). This ensures you can connect it to modern smart TVs as well as older models that may only have analog or optical audio outputs.
What is the AccuVoice feature and how do I use it?
AccuVoice is ZVOX’s patented dialogue clarification technology. It processes the audio signal to separate and enhance voices while reducing background noise. You use it by pressing the “AccuVoice” button on the included remote control, which cycles through twenty different intensity levels. You can adjust it until dialogue sounds clear and comfortable to your ears for any given show or movie.
Does this soundbar come with a separate subwoofer?
No, the ZVOX AV855 does not include or require a separate subwoofer. It has two subwoofers built directly into the soundbar cabinet itself. This design choice allows for enhanced bass response from its low-profile unit, simplifying setup and reducing clutter.
Can I play music from my phone on the AV855?
You cannot stream music directly from a phone via Bluetooth, as the AV855 does not have wireless connectivity. However, you can play music by connecting your phone’s headphone jack to the soundbar’s 3.5mm auxiliary input using a cable. Alternatively, you can load audio files onto a USB flash drive and plug it into the soundbar’s USB port for direct playback. For soundbars with wireless features, consider our list of the best Wi-Fi soundbars.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.